Ruinsara Tal is a small lake in the high reaches of the Himalayas. The lake is at a distance of 8 km from Osla. Ruinsara Tal is on the edge of the Tons Glacier, which originates from Bandarpunch Peak. The lake is located just below the Bandarpunch Glacier and is an ideal camping site. The Har-Ki-Doon Valley and Swargarohini Mountain are nearby. There are a wide variety of anemones near the lake.